A Country That Maintains Three Different Standards of Railroad Track

question 125

Multiple Choice

A country that maintains three different standards of railroad track as a result of European colonial efforts is:

• A) Spain
• B) Algeria
• C) Australia
• D) Russia

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Definitions:

Population Variances

A measure of the dispersion of all the data points in a population from the mean.

Confidence Interval

A span of numbers, extracted from statistics of a sample, which is probably going to include the value of an unseen population parameter, with a specified level of certainty.

Population Variances

Statistical measures that quantify the spread or dispersion within a set of population data values.

Antioxidants

Substances that can prevent or slow damage to cells caused by free radicals, often found in fruits and vegetables.